cse2.dcf

用Java实现的编译器。把源代码编译成SPARC汇编程序

class Program {

  int array[10];

  void fill(int b) {
    int q;

    q = 0;
    while (q < 10) {
      array[q] = b;
      b = b + 1;
      q = q + 1;
    }
  }

  void cause_se(int g) {
    array[g] = 50;
  }

  int doit(int i, int g) {
    int b;

    b = 1 + array[i];
    
    array[g] = 4;

    b = b + array[i]; // should not reuse array[i].

    cause_se (g);

    b = b + array[i]; // should not reuse array[i].

    return b;
  }
  
  void main() {
    int a,b;

    callout("printf","A? ");
    a = callout("readint");

    fill(a);
    
    b = doit(a, 5);

    callout("printf", "a: %d  b: %d\n", a, b);

  }
}